Throttle-valve for portable pneumatic motors.



PATENTED JUNE 21, 1904. R. A. NORLING.

APPLIGATION FILED NOV.19, 1903.

THROTTLE VALVE FOR PORTABLE PNEUMATIC MOTORS.

fio MODEL.

PAT NT OFFICE.

Patented June 21, 1904.

AUTOMATIC'MACHINERYICOMPANY,"OF AURORA, 'iLLixo-i-siiA L.()l\lU-.

QN *QFILLI I 'iT-i-iRQT TLE-VALVE oR' PORTABLE PNEIUMIATICYMOITORS.

SPECIFICATION forming part of Letters Patent No. 762,933, dated-June 21,'1904; n tion fiiodNoveinhet19' 1903. Serial no. 181,804. (No model.)

"To all whom it may concern:

Be it known that I, R'EINHOLD \NORLING,

a citizen of-the United States, and'a resident of Aurora, in theIcouhtyof Kane andState of Illinois; have invented certain new and usefulImprovements in Throttle-Valves" for Portable Pneumatic Motors; and I'dohereby declare I that the followingis a full, clear, and exact .drill'or like tool.

description thereof, reference being had to the accompanying drawings,and to the letters of of this specification. This invention relates toreference marked thereon, whichforma part improvements in throttle-valves for'pneumatic drills or mechanisms of thatkind embracing afluid-pressure engine of portable form ,applied to operate aThe-invention consists in the pointed out in the appended claims;-

In theaccompanying drawings-Figure 1 is.

a side view of a part ofthe casing ofa pneu matic drill with thethrottle -valve attached thereto. Fig. 2 is a v-iewin centrallongitudinal section of the throttle-valve.

cross-section taken on line 3 3 of Fig.2. Fig 4.

, is a cross-section taken on line 4 4 of Fig. 2".

Asshown in" said drawings,-A indicates part of the casing of a portablepneumatlc motor, and B a supply-pipe through whlch compressed air orother fluid is 'supplied'to' the motor. Said air-supply tube is attachedrigidly to and projects from the casing of the motor and will usuallyconstituteone-of the hand'les'of the motor. Insaid airesupply pipe B isformed the throttle-valve, which is operated through the medium of atubular rotative handle or grip-C, 'mounted' on and surhasanintermediate flat-sided part for the application of a wrench, aprojection or nipple which enters the Wall of the casing A, and at itsouter end a screw-threaded portionwhich enters and is engaged by thepipe'B. The

part B of the pipe Bis reduced in diameter,

and around the same is placed the rotativo tubular handle or sleeve 0,which is grasped by the hand of the operator using the machine and whichmay be turned upon the pipe B;

- The tubular handle or sleeve C is shown as held in place on the tubeBby means of a screwthreaded ring 6, applied to the screw-threaded outerend of said pipe B. The'outer end ot' matters here Fig. 3 is a slotsformed in the lugs b 'e The plug 1) the'air-chamber'A of the casing. Thesaid ports (Z-d open through theflat outer face or valve-seat on theplug, and in contact with said a flat outer 'face is a rotativevalvedisk E,

' which is provided with two ports 0 e, which correspond in positionwith the ports 2 1]. Es ch. of the portsd (Z inlthe valve-seat and ofthe ports e eflin the rotative valve-disk is lo cated eccentrically toorat one side of the axis of rotation of the valve-disk, so that by theturning of the disk the ports in the seat may be closed or wholly orpartially opened. The said rotative valve-disk E has two lugs in which.are formed -transverse slots 0 e Said lugs e .e" are separated, soas toformbetween them a space or recess adapted to receive the cylindri cstem f on a 'rotative valve actuat- 1 'ing plug F, which is mounted toturn within the pipe B and is connected with the handle C. The stem f isprovided witha cross-pin f, which engages at its ends the transverseSaid plug F is shown as immediately engaging a thimble (1, which isinserted and secured in the smaller part B of the pipe B and which formsa bear-Z ing-in which the plug rotates. Said. plug is connected 'withthe sleeve C by means of a radial stud c,- which passes through acurvcdslot 7), formed in the pipe B, and a like slot g, formed in the thimbleG. The rotative plugF is provided witha longit-i'idinal groove F formin)assage for air from the main part of the air-inlet pipe past the saidplug to g the 'valve'formed by the valve-disk E;

connected with and adapted to give rotative ally to the, axis ofrotation of said disk.

rotative throttle-valve embracing an endwise-' 'rotative throttle-valve,said throttle-valve ernbracing an endwise-facing valve-seat, a rota- Itwill be imanifest that when the plug F is turned by rotation of thesleeve C it willby reason of being connected with the valve-plate i E bythe connections described correspondingly turn said valve-plate, andthus wholly or i by preventing leakage of air when the valve isclosed. Hv

I claim as my invention- K v 1. The 'combinationwvith asupply-pipe, of afacing valve-seat provided with a port, a rotativevalve-disk which restsin contact with and is adapted to turn on said valve-seat and is'alsoprovided with a port, and a rotative tubular handle on thesupply-pipe which is movement-to said valve-disk, the ports in thevalve-seat and disk being'arran'ged eccentric- 2. The combination with asupply-pipe, of a tive valve-disk resting thereon, and means foroperating said valve-disk from the exterior of the supply-pipe, saidvalve-operating means being loosely connected with said valve-disk sothat the prc-ssuie in the supplyape tends to hold the disk againstitssaid seat.

3. The combination with asupply-pipc, of a rotary throttle'valveembracing an cndwisefacing valve-seat, a rotative valve-disk restingagainst said seat, a rotatable sleeve or tubular handle mounted on saidsupply-pipe, and operative connections between the said tubular handleand the valve-disk which are loosely connected with the valve-disk, soas to permit the pressure in thepipe to hold the disk against its seat.

4. The combination-with a supply-pipe, of arotary throttle-valve, saidvalve embracing an endwise-facing valve-seat, a valve-disk adapted torest against said'valve-seat, a rotative sleeve or tubular handlemounted on said supply-pipe, a rotative plug. mounted to turn in thesupplypipe and connected with said tubular handle, said plug having alongitudinal passage to permit the passage of air past the same andbeing connected with the valve-disk by a loose joint alfording endwiseovement of the valve-disk with respect to the plug.

In testimony that I claim the foregoingas my invention I aflix mysignature, in presence of two witnesses, this 16th day of November, A.D. 1903.

REINHOL'D A. NORLING.

Witnesses C. E. ERIKsoN, F. A. BURGESS.

